US2925406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polythiaalkylacrylates
Assignee: 3M Co
•
Filing: 1957-04-08
•
Granted: 1960-02-16
•
Expires: 1977-04-08
Abstract
No abstract record available.
Inventors
- 👤 Richard M Mccurdy
- 👤 Julianne H Prager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:43
CPC Classifications
C; C08; C08F; C08F28/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
8 words
A POLYMER OF A COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |